| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.17 | 1.12 | 0.05 |
| Feb | 1.01 | 1.03 | -0.02 |
| Mar | 1.48 | 1.49 | -0.01 |
| Apr | 2.63 | 2.64 | -0.01 |
| May | 3.23 | 3.21 | 0.02 |
| Jun | 3.57 | 3.72 | -0.15 |
| Jul | 3.50 | 3.66 | -0.16 |
| Aug | 3.17 | 3.01 | 0.16 |
| Sep | 3.42 | 3.47 | -0.05 |
| Oct | 3.18 | 3.36 | -0.18 |
| Nov | 1.87 | 1.75 | 0.12 |
| Dec | 1.52 | 1.50 | 0.02 |
29.75 | 29.96 | -0.21 |